When a person is so obsessed with his blackberry that he totally forgets where he's at and what he was doing.
He: HUH?! Where are we?
You: Dude we just went to the super market!
He: I can't remember!
You: Put that thing away!!! you're suffering a black out berry!
You: Dude we just went to the super market!
He: I can't remember!
You: Put that thing away!!! you're suffering a black out berry!
by T-kizzle June 22, 2011
Get the Black out Berry mug.